Brownells Xl-Tall Black Sight Set Serrated .315''F/.394''R For Glock

The Brownells XL-Tall Black Sight Set is a serrated iron sight pair built for Glock pistols running larger red dot optics. If you're running an Aimpoint Acro, Holosun 509T, or Steiner MPS on your Gen 3, 4, or 5 Glock slide, these sights are engineered to co-witness properly beneath your dot—no guessing, no mounting gymnastics. The XL height (.315" front / .394" rear) splits the difference between being too tall for basic shooting and too short for your optic, keeping your sight picture clean and your backup irons genuinely usable.

Both the front and rear blades are serrated matte black, which cuts down on glare and gives you positive, snag-free edges to manipulate. The rear sight features a U-notch cut that lets you naturally center the front blade for fast, intuitive sight alignment under stress. These are built to work on any standard Glock with factory sight cuts, though they were originally designed for Brownells slides—compatibility is straightforward across the board.

Whether you're setting up a duty gun, a competition build, or a defensive carry rig with a mounted optic, having reliable iron sights that actually work in concert with your glass isn't luxury; it's common sense. The XL-Tall height gives you that practical co-witness you need without forcing you to choose between your red dot and your irons.

Key Features

• Serrated front and rear blades reduce glare and provide secure handling
• U-notch rear cut for fast, intuitive sight alignment
• Matte black finish for low-light performance and durability
• Designed for co-witnessing with larger frame-mounted red dots (Aimpoint Acro, Holosun 509T, Steiner MPS)
• Compatible with Gen 3, 4, and 5 Glock models with standard sight cuts

Specifications

Frequently Asked Questions

Will these sights work with my Glock and a red dot mounted on the slide?

Yes. The XL-Tall height is specifically designed for co-witnessing with larger frame-mounted optics like the Aimpoint Acro, Holosun 509T, and Steiner MPS on Gen 3, 4, and 5 Glocks. Your irons will sit lower than your dot and remain accessible if the optic fails.

Are these compatible with all Glock models?

These sights fit any standard Glock with factory sight cuts. They were originally designed for Brownells slides but work across Gen 3, 4, and 5 platforms. If your Glock has non-standard cuts or an optic-ready slide without iron sight dovetails, they won't be compatible.

What's the difference between XL-Tall and other Brownells Glock sight heights?

Brownells offers three heights to match different optics: 1L for smaller pistol-mounted dots (Holosun 407K/507K), XL for mid-size frame-mounted optics, and 3XL for compact RMR-style enclosed emitters. XL gives you the right witness line for larger dedicated frame optics.

Do the serrated edges make these sights harder to install?

No. The serrations are on the blade surfaces, not the dovetail—installation is the same as any standard Glock iron sight. Serrations improve your grip and reduce glare; they don't complicate fitment.